Metal/Ceramic Interface Engineering: Adhesion Strength Measurement between Dielectric Ceramic and Electrode Metals
博士 === 臺灣大學 === 材料科學與工程學研究所 === 95 === The present study investigates the mechanical strength of metal/oxide interface. Ceramic was commercial available BaTiO3. Silver and nickel pastes are used as the metal materials. The metal film was prepared by screen-printing. Specimens with Ag or Ni layer, fa...
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ndltd-TW-095NTU051590622015-10-13T13:55:55Z http://ndltd.ncl.edu.tw/handle/40054970050171665722 Metal/Ceramic Interface Engineering: Adhesion Strength Measurement between Dielectric Ceramic and Electrode Metals 金屬/陶瓷界面工程:介電陶瓷與金屬電極之接著強度研究 Chao-Yu Lee 李炤佑 博士 臺灣大學 材料科學與工程學研究所 95 The present study investigates the mechanical strength of metal/oxide interface. Ceramic was commercial available BaTiO3. Silver and nickel pastes are used as the metal materials. The metal film was prepared by screen-printing. Specimens with Ag or Ni layer, fabricated at different sintering temperatures, covering dense BaTiO3 substrates with different surface roughness have been prepared with a special geometry appropriate for blister and indentation testing. The blister test technique allows numerical estimation of interfacial adhesion strength through determination of the interfacial crack propagation energy. A simple method is proposed to correct for generalized plastic straining of silver layer. The average value of Ag/BaTiO3 adhesion strength ranges from 4 J/m2 to 7 J/m2 according to the firing temperature of Ag. For Ni film fired at 1200°C for 2 h on dense barium titanate, the average value is about 1 J/m2 Three indentation tests are developed to measure critical energy release rate of the same metal/oxide interfaces. The average Gci of Ag/BaTiO3 interface is about 0.5 J/m2 according to normal and interface indentation tests. Cross-sectional indentation test has been also successfully performed and a new model for analysis of its results is developed. The average Gci of Ag/BaTiO3 interfaces are obtained from 1 J/m2 to 3 J/m2 according to the models. Wei-Hsing TUAN Michel DUPEUX 段維新 Michel DUPEUX 2007 學位論文 ; thesis 233 en_US |
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博士 === 臺灣大學 === 材料科學與工程學研究所 === 95 === The present study investigates the mechanical strength of metal/oxide interface. Ceramic was commercial available BaTiO3. Silver and nickel pastes are used as the metal materials. The metal film was prepared by screen-printing. Specimens with Ag or Ni layer, fabricated at different sintering temperatures, covering dense BaTiO3 substrates with different surface roughness have been prepared with a special geometry appropriate for blister and indentation testing.
The blister test technique allows numerical estimation of interfacial adhesion strength through determination of the interfacial crack propagation energy. A simple method is proposed to correct for generalized plastic straining of silver layer. The average value of Ag/BaTiO3 adhesion strength ranges from 4 J/m2 to 7 J/m2 according to the firing temperature of Ag. For Ni film fired at 1200°C for 2 h on dense barium titanate, the average value is about 1 J/m2
Three indentation tests are developed to measure critical energy release rate of the same metal/oxide interfaces. The average Gci of Ag/BaTiO3 interface is about 0.5 J/m2 according to normal and interface indentation tests. Cross-sectional indentation test has been also successfully performed and a new model for analysis of its results is developed. The average Gci of Ag/BaTiO3 interfaces are obtained from 1 J/m2 to 3 J/m2 according to the models.
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Wei-Hsing TUAN |
author_facet |
Wei-Hsing TUAN Chao-Yu Lee 李炤佑 |
author |
Chao-Yu Lee 李炤佑 |
spellingShingle |
Chao-Yu Lee 李炤佑 Metal/Ceramic Interface Engineering: Adhesion Strength Measurement between Dielectric Ceramic and Electrode Metals |
author_sort |
Chao-Yu Lee |
title |
Metal/Ceramic Interface Engineering: Adhesion Strength Measurement between Dielectric Ceramic and Electrode Metals |
title_short |
Metal/Ceramic Interface Engineering: Adhesion Strength Measurement between Dielectric Ceramic and Electrode Metals |
title_full |
Metal/Ceramic Interface Engineering: Adhesion Strength Measurement between Dielectric Ceramic and Electrode Metals |
title_fullStr |
Metal/Ceramic Interface Engineering: Adhesion Strength Measurement between Dielectric Ceramic and Electrode Metals |
title_full_unstemmed |
Metal/Ceramic Interface Engineering: Adhesion Strength Measurement between Dielectric Ceramic and Electrode Metals |
title_sort |
metal/ceramic interface engineering: adhesion strength measurement between dielectric ceramic and electrode metals |
publishDate |
2007 |
url |
http://ndltd.ncl.edu.tw/handle/40054970050171665722 |
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